IBM z Systems Integrated Information Processor (zIIP)

What is IBM z Integrated Information Processor?

IBM® z Integrated Information Processor (zIIP) is a purpose-built processor designed to operate asynchronously with the general processors in the mainframe to help improve utilization of computing capacity and control costs. It is designed for select data and transaction processing workloads and for select network encryption workloads. zIIPs allow customers to purchase additional processing power without affecting the total million service units (MSU) rating or machine model designation. IBM does not impose IBM software charges on zIIP capacity, but charges apply when additional general purpose CP capacity is used.